/*************************************************************************/ /* parallax_layer.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "parallax_layer.h" #include "parallax_background.h" void ParallaxLayer::set_motion_scale(const Size2 &p_scale) { motion_scale = p_scale; ParallaxBackground *pb = Object::cast_to<ParallaxBackground>(get_parent()); if (pb && is_inside_tree()) { Vector2 final_ofs = pb->get_final_offset(); real_t scroll_scale = pb->get_scroll_scale(); set_base_offset_and_scale(final_ofs, scroll_scale); } } Size2 ParallaxLayer::get_motion_scale() const { return motion_scale; } void ParallaxLayer::set_motion_offset(const Size2 &p_offset) { motion_offset = p_offset; ParallaxBackground *pb = Object::cast_to<ParallaxBackground>(get_parent()); if (pb && is_inside_tree()) { Vector2 final_ofs = pb->get_final_offset(); real_t scroll_scale = pb->get_scroll_scale(); set_base_offset_and_scale(final_ofs, scroll_scale); } } Size2 ParallaxLayer::get_motion_offset() const { return motion_offset; } void ParallaxLayer::_update_mirroring() { if (!is_inside_tree()) { return; } ParallaxBackground *pb = Object::cast_to<ParallaxBackground>(get_parent()); if (pb) { RID c = pb->get_canvas(); RID ci = get_canvas_item(); Point2 mirrorScale = mirroring * get_scale(); RenderingServer::get_singleton()->canvas_set_item_mirroring(c, ci, mirrorScale); } } void ParallaxLayer::set_mirroring(const Size2 &p_mirroring) { mirroring = p_mirroring; if (mirroring.x < 0) { mirroring.x = 0; } if (mirroring.y < 0) { mirroring.y = 0; } _update_mirroring(); } Size2 ParallaxLayer::get_mirroring() const { return mirroring; } void ParallaxLayer::_notification(int p_what) { switch (p_what) { case NOTIFICATION_ENTER_TREE: { orig_offset = get_position(); orig_scale = get_scale(); _update_mirroring(); } break; case NOTIFICATION_EXIT_TREE: { if (Engine::get_singleton()->is_editor_hint()) { break; } set_position(orig_offset); set_scale(orig_scale); } break; } } void ParallaxLayer::set_base_offset_and_scale(const Point2 &p_offset, real_t p_scale) { if (!is_inside_tree()) { return; } if (Engine::get_singleton()->is_editor_hint()) { return; } Point2 new_ofs = p_offset * motion_scale + motion_offset * p_scale + orig_offset * p_scale; if (mirroring.x) { real_t den = mirroring.x * p_scale; new_ofs.x -= den * ceil(new_ofs.x / den); } if (mirroring.y) { real_t den = mirroring.y * p_scale; new_ofs.y -= den * ceil(new_ofs.y / den); } set_position(new_ofs); set_scale(Vector2(1, 1) * p_scale * orig_scale); _update_mirroring(); } PackedStringArray ParallaxLayer::get_configuration_warnings() const { PackedStringArray warnings = Node::get_configuration_warnings(); if (!Object::cast_to<ParallaxBackground>(get_parent())) { warnings.push_back(RTR("ParallaxLayer node only works when set as child of a ParallaxBackground node.")); } return warnings; } void ParallaxLayer::_bind_methods() { ClassDB::bind_method(D_METHOD("set_motion_scale", "scale"), &ParallaxLayer::set_motion_scale); ClassDB::bind_method(D_METHOD("get_motion_scale"), &ParallaxLayer::get_motion_scale); ClassDB::bind_method(D_METHOD("set_motion_offset", "offset"), &ParallaxLayer::set_motion_offset); ClassDB::bind_method(D_METHOD("get_motion_offset"), &ParallaxLayer::get_motion_offset); ClassDB::bind_method(D_METHOD("set_mirroring", "mirror"), &ParallaxLayer::set_mirroring); ClassDB::bind_method(D_METHOD("get_mirroring"), &ParallaxLayer::get_mirroring); ADD_GROUP("Motion", "motion_"); ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "motion_scale", PROPERTY_HINT_LINK), "set_motion_scale", "get_motion_scale"); ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "motion_offset", PROPERTY_HINT_NONE, "suffix:px"), "set_motion_offset", "get_motion_offset"); ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "motion_mirroring"), "set_mirroring", "get_mirroring"); } ParallaxLayer::ParallaxLayer() { }